Brick-machine



L. TILL.

. BRIGK MACHINE.

No. 13,502. Patented Aug. 28, 1855.

UNITED STATES PATENT GFFTQE.

LEVI TILL, OF SANDUSKY, OHIO.

BRICK-MACHINE.

Specification of Letters Patent No. 13,502, dated August 28, 1855.

T 0 aZZ whom 2t may concern Be it known that I, LEVI TILL, of Sandusky, in the county of Erie and State of Ohio, have invented new and useful Improvements in Machines for Making Bricks; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, which make a part of this specification, in which- Figure 1, is a longitudinal elevation of the machine as if out perpendicularly through the center. Fig. 2, also shows the machine longitudinally but as if out horizontally through the center. Fig. 3, is a transverse section. Fig. 4, is a plunger, or device for discharging the brick, and Fig. 5, is the air piunp. The same letters inclicate the same parts in all the figures.

My machines are made of iron, with great accuracy, to work upon a frame standing on four legs. The clay being thoroughly pulverized falls into the hopper and is molded by one, one pressed by the other of the two large and principal wheels whose periphery revolve in contact as in many other machines.

In Fig. 1, A, A, is the frame; B, B, the legs; C, is the mold wheel and D, the pressing wheel; E, E, is the elongated hopper. e, is the graduator, a, a, a, &c., are open spaces or molds in which the bricks are formed, Z), 6, Z), &c., are plungers which discharge the bricks. c, 0, 0, &c., represent small pistons passing through the plungers to disengage the bricks from the bottom of the mold or plunger. (Z, (Z, are rollers at tached to the shaft of the mold wheel and within the same, and at the proper time, passing first over the plunger throws it out, and next over the smaller piston e, throws it out. f is a pinion upon the driving shaft 9, which moves the mold wheel C, by means of cogs upon the edge of its periphery, these again working into corresponding cogs upon the pressing wheel, moves it in an opposite direction. it, h, 71, are three of a series of flat projecting points upon the periphery of the mold wheel which enter the diagonal slots m, m, m, in the pressing wheel, so as to secure the accurate meeting of the molds and pressers as the wheels revolve together. 2', 2', are two shafts which pass through the frame near the extreme right and left of the same. Upon each of these shafts are two blocks j, j, inclining to a triangular shape which act like levers and are moved by the screws 70, 7c, through these blocks on the left, passes the driving shaft g. Another shaft 9 passes through the blocks on the right. Upon each of these two last named shafts g and g are two pressure rollers 79, p, so acting upon the two large wheels Gand D as to keep them in close contact and thus relieve their axles from too much strain. A balance wheel, shown at F in the drawing may be used. Z, Z, Z, are three of the pressers; these are perforated as shown, to allow the escape of the air; they surround the pressing Wheel to correspond with the molds a, a, a, &c. m, m, m, &c., are slots cutdiagonally in the pressing wheel between the pressers to allow the escape of the excess of clay. a, n, is a section of the exhausting tube, communicating with the hollow shaft or axle 0, the mouth of which being always opposite the brick that is under pressure, draws the air therefrom through the perforated pressers as indicated by the arrow into the hollow shaft and thence out through the air pump.

Fig. 2, besides the parts already referred to shows the crank r, upon the driving shaft 9, which works the piston rod 8, and the piston t in the cylinder u.These form an air pump, to exhaust the air from the clay in the mold while it is receiving the pressure. V, V, are valves in the cylinder case G, is a pulley upon the driving shaft g. There is also another pulley not shown in the drawing, upon the shaft of the graduator 6, outside the hopper. These with a belt, work the graduator delivering more or less clay as the machine moves faster or slower.

In Fig. 8, m, 5n, m, are diagonal slots for the free discharge of all excess of clay.

Fig. 4, represents one of the plungers b, with the small piston 0, which passes through it. These discharge the brick.

Fig. 5, represents the cylinder u, showing the valves X, X, and also a slide Y at the bottom of the cylinder case to be opened occasionally by hand to let out any clay that may fall to the bottom of the case.

My machine is moved by power applied to the driving shaft g. The mold wheel and pressing wheel both turn upon their shafts or axles which are stationary, the shaft of the pressing wheel being as before stated hollow and entering into the cylinder case, as seen in Fig. 2.

In operation, the clay being first pulver ized falls into the hopper E, E, and is measured into the mold by the graduator e. The hopper being elongated, prevents the clay from falling off the sides till it comes under the presser, and While receiving the pressure, the air pump exhausts the air from the clay through the perforated pressers. l/Vhen the mold with the brick thus formed and pressed, gets to the bottom of the Wheel, the rollers cl, (Z, (Z, (see Fig. 2) throw out, first the plunger and then its small piston,

thus depositing the bricks on anything prepared to receive it. It is intended that the principal strain in pressing the bricks shall be borne by the pressure rollers 79, p, p, p,

(see Fig. 2), and not by the shafts or axles of the Wheels C and D.

WVhat I claim as my invention and desire to secure by Letters Patent is 1. I claim the use of the air pump in combination With the perforated pressers by of the machine.

LEVI TILL. lVitnesses:

JAMES IV. SHEARER, THos. DRAKE. 

